Filter Filters Cadillac Harmony Audio Remove All Filters Price Under $50 (5) $50-$100 (18) $100-$500 (66) Condition New (89) Model DeVille (20) Seville (14) Eldorado (13) Coupe DeVille (11) Escalade (11) Fleetwood (6) Brougham (3) Catera (3) Cimarron (3) Show More SRX (2) CTS (1) DTS (1) STS (1) Fits Cadillac Coupe DeVille 1988-1989 OEM Speaker Upgrade Harmony Premium... $125.99 Cadillac Coupe DeVille 1985-1987 OEM Speaker Upgrade Harmony Speakers Package $134.99 Cadillac Coupe DeVille 1988-1989 OEM Speaker Upgrade Harmony Speakers Package $94.99 Cadillac Fleetwood 1985-1992 OEM Speaker Upgrade Harmony R5 R69 Package New $98.99 Cadillac DeVille Concours 1994-1995 OEM Speaker Upgrade Harmony Speakers New $134.99 Cadillac Eldorado 1996-1999 OEM Speaker Upgrade Harmony R4 R69 Package New $92.99 Cadillac Seville 1996-1996 OEM Speaker Upgrade Harmony R4 R69 Package New $92.99 Cadillac Catera 1997-2001 OEM Speaker Upgrade Harmony R65 R69 Package New $103.99 Cadillac Cimarron 1982-1988 OEM Speaker Upgrade Harmony R35 R69 Package New $89.99 Cadillac Coupe DeVille 1990-1993 OEM Speaker Upgrade Harmony Speakers Package $134.99 Cadillac Eldorado 2000-2002 OEM Speaker Upgrade Harmony R4 R69 Package New $92.99 Cadillac Seville 1992-1995 OEM Speaker Upgrade Harmony R5 R69 Package New $98.99 Cadillac Coupe DeVille 1988-1993 Factory Radio OEM Original Stereo Wire Harness $7.95 Cadillac Escalade 2007-2014 OEM Speaker Upgrade Harmony R65 R5 Package New $83.99 Compatible with Cadillac Brougham 1987-1992 OEM Speaker Replacement Harmony... $228.99 Cadillac Seville 1997-2001 OEM Speaker Upgrade Harmony R5 R69 Package New $98.99 Cadillac Fleetwood 1993-1996 OEM Speaker Upgrade Harmony R5 R69 Package New $98.99 Cadillac Escalade 1999-2002 Factory Radio OEM Original Stereo Wire Harness Plug $7.95 Cadillac Brougham 1987-1992 OEM Speaker Upgrade Harmony R5 R69 Package New $98.99 Cadillac DeVille 1988-1995 Factory Radio OEM Original Stereo Wire Harness Plug $7.95 Cadillac Seville 1988-1991 Factory Radio OEM Original Stereo Wire Harness Plug $7.95 Compatible with Cadillac Escalade 1999-2002 OEM Speaker Replacement Harmony... $215.99 Compatible with Cadillac Brougham 1987-1992 OEM Speaker Replacement Harmony... $278.99 Compatible with Cadillac DeVille 1988-1989 OEM Speaker Replacement Harmony... $285.99 1234